You can still buy this recording done by Tennesseee Folklore Society Records on the web for fifteen bucks. It was recorded between 1974-76, by his friend David Morton, who would later write a biography of Mr. Bailey, who was the only founding father of the Grand Ole Opry inducted into the Country Music Hall of Fame. On six of the cuts, he plays guitar or banjo and not harmonica, e.g., on Lost John he plays banjo. On two tracks, he talks about the harmonica and says that a harmonica lasts him 8-10 years, but the one used on this recordings he's had for twelve years! Every track is spectacular, recorded by his friend David Morton, who would later write a book about DeFord. The banjo and guitar playing is as good as his harmonica playing. I never grow tired of listening to his beautiful silky voice. The liner notes are excellent.
Harp Blowers Complete Recorded has the best selection of DeFord Bailey recordings from the 1920's, eleven in all.